Add std_shared_ptr_converter.hpp.
Add std_shared_ptr_converter.hpp.

Include this file if you want to use std::shared_ptr with luabind. Although
it's quite hacky, it seems to work with at least VC11 and the g++ included in
Ubuntu 12.10.

lonski/luabind,Oberon00/luabind,Oberon00/luabind